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1957年,中国女子将两个小瓶带回国,美国海关因疏忽放行而后悔
Sou Hu Cai Jing· 2025-10-05 06:50
Core Insights - The article highlights the story of Lin Lanying, a Chinese scientist who made significant contributions to the semiconductor industry after returning to China from the United States, emphasizing her dedication to her homeland and the impact of her work on China's technological advancement [3][5][12]. Group 1: Lin Lanying's Background and Decision - Lin Lanying completed her studies in the U.S., earning a PhD and working as a senior engineer in the semiconductor field, but chose to return to China at her family's request, despite the attractive opportunities in the U.S. [3][5]. - The U.S. attempted to retain her through high salaries and benefits, recognizing her expertise and contributions to patented technologies [5]. Group 2: The Critical Moment at Customs - In 1957, while returning to China, Lin carried two crucial research materials disguised as medicine, which were key to semiconductor research [6][7]. - During customs inspection, she cleverly diverted attention by offering a large sum of $6,800, allowing her to successfully bring the materials back to China [6]. Group 3: Contributions to Semiconductor Research - The materials Lin brought back were germanium and silicon single crystal samples, which opened the door for semiconductor research in China [7]. - Within seven months of her return, China successfully produced its first germanium single crystal, followed by the first silicon single crystal the next year, contradicting U.S. claims about China's capabilities in the semiconductor field [7][8]. Group 4: Innovations and Achievements - Lin Lanying adapted to local conditions by designing a new type of single crystal furnace due to the lack of critical materials like argon gas, leading to advancements in silicon single crystal technology by 1962 [8]. - By the mid-1960s, China was producing silicon planar crystals, laying the foundation for the development of the electronics industry [8]. - Lin and her students later developed silicon solar cells, which played a crucial role in the success of China's first artificial satellite launch [8]. Group 5: Legacy and Recognition - In the 1990s, Lin pioneered the "space growth experiment" for gallium arsenide single crystals, becoming the first to prove the feasibility of space materials, earning her the title "Mother of Chinese Space Materials" [10]. - Lin Lanying passed away on March 4, 2003, leaving behind a legacy that is forever etched in the history of China's scientific development [12].
用稀有锗造就“红外眼”
Jing Ji Ri Bao· 2025-09-19 22:23
Core Insights - The company, Yunnan Chihong Zinc & Germanium Co., Ltd., has established itself as a key player in the germanium industry, producing various germanium products for high-tech applications [1][2] - The company has developed a complete infrared germanium industry chain, including raw materials, single crystals, and optical components, with an annual production capacity of 60 tons of germanium metal [1][2] - The company has successfully launched a production line for ultra-pure germanium tetrachloride, which is crucial for fiber optic preform production, with an annual capacity of 30 tons [2] Company Developments - The company has a rich history dating back to the 1950s, contributing significantly to national defense projects by extracting germanium from lead-zinc ores [1] - In 2022, the company completed the construction of a production line for ultra-pure germanium tetrachloride, becoming one of the few companies globally to master this technology [2] - The company is focusing on high-value downstream products, including infrared germanium single crystals and optical components, which are widely used in industrial inspection and security monitoring [2] Strategic Collaborations - The company is enhancing its research and development capabilities through collaborations with various institutions, including the Chinese Academy of Sciences and Jinan University [3] - The establishment of a joint laboratory for infrared information technology and a talent training base with Kunming University of Science and Technology aims to cultivate skilled professionals in the field [3] - The company plans to innovate through a combination of independent research and technology absorption to extend its industrial chain and enhance the value of germanium [3]
光智科技(300489.SZ)锗材料相关存货包括锗原料、区熔锗、锗单晶等产品,目前库存充足
Ge Long Hui· 2025-09-03 08:14
Core Viewpoint - The company, Guangzhi Technology, has confirmed that it maintains sufficient inventory of germanium materials, including raw germanium, zone-refined germanium, and germanium single crystals, ensuring a stable supply chain [1] Group 1 - The company has a strong collaboration with upstream smelting plants to dynamically adjust production reserves based on customer demand [1] - The inventory includes various germanium products, indicating a diversified supply capability [1]
云南锗业: 2025年半年度财务报告
Zheng Quan Zhi Xing· 2025-08-21 16:59
Core Viewpoint - The financial report of Yunnan Lincang Xinyuan Germanium Co., Ltd. for the first half of 2025 indicates significant changes in both assets and liabilities, with a notable increase in total assets and a decrease in net profit compared to the previous year [2][6]. Financial Performance - Total operating revenue for the first half of 2025 reached CNY 529.50 million, up from CNY 348.13 million in the same period of 2024, representing a growth of approximately 52% [4]. - Total operating costs increased to CNY 522.20 million from CNY 380.21 million, marking a rise of about 37% [4]. - The net profit for the first half of 2025 was CNY -11.52 million, a decline from a profit of CNY 0.33 million in the first half of 2024 [6]. Assets and Liabilities - Total assets at the end of the reporting period amounted to CNY 3.49 billion, compared to CNY 3.18 billion at the beginning of the year, reflecting an increase of approximately 10% [2][3]. - Current assets totaled CNY 1.92 billion, up from CNY 1.59 billion, indicating a growth of about 20% [2]. - Total liabilities increased to CNY 1.97 billion from CNY 1.67 billion, which is an increase of around 18% [3]. Cash Flow - The net cash flow from operating activities was CNY -131.90 million, worsening from CNY -83.10 million in the previous year [7]. - Cash and cash equivalents at the end of the period were CNY 373.25 million, down from CNY 49.87 million at the beginning of the year [7]. Shareholder Equity - Total equity attributable to shareholders was CNY 1.46 billion, slightly up from CNY 1.45 billion at the beginning of the year [3][8]. - The basic and diluted earnings per share for the first half of 2025 were CNY 0.034, compared to CNY -0.014 in the same period of 2024 [5].